Artist Makes Palimpsest Of British Museum's New Extension

Liam O'Connor is the British Museum's current artist-in-residence. Over the past three years, he's been sketching developments to the north-west of the museum, where a new wing is taking shape.

The images above show the same drawing at different stages. The sketch changes as the site changes. Layers build up, as all the forms the building site passes through accumulate on the surface of the drawing. He's also captured impressions of the building's surfaces and forms through rubbings, relief prints and other techniques, as detailed in this video.